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Home Generators Standby Generators Briggs and Stratton 10kW Standby Generator with 100-Amp 16-Circuit ATS | 40685
Cummins 13kW Home Standby Generator with 200-Amp Automatic Transfer Switch | Quiet Connect Series RS13A-NP2
Cummins 13kW Home Standby Generator with 200-Amp Automatic Transfer Switch | Quiet Connect Series RS13A-NP2 $2,755.00
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Briggs and Stratton 10kW Generator PowerProtect Standby Series | 40684
Briggs and Stratton 10kW Generator PowerProtect Standby Series | 40684 $1,690.00

Briggs and Stratton 10kW Standby Generator with 100-Amp 16-Circuit ATS | 40685

$1,989.00

  • Briggs and Stratton 10kW Standby Generator PowerProtect Series
  • Includes 100 Amp 16-Circuit Automatic Transfer Switch
  • Rated at 10kW LP Propane / 8kW Natural Gas
  • Compact design the smallest in its class—50% smaller than competing models
  • Aluminum Enclosure with Automotive-Grade Galvanneal Steel Base
  • Automatically Restores Power to Your Home Seconds After the Power Goes Out
  • Thermally Protected Fuel System Shuts off Fuel in the Event of a Fire
  • Easy to Use Control Panel Makes Repairs Easier and Less Costly
  • Longest Most Comprehensive Standard Warranty in its Class
  • Briggs & Stratton 6-Year Warranty Covers Parts, Labor, and Travel for the Entire Term.
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Category: Standby Generators
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Description

Briggs and Stratton 10kW Generator

The Briggs and Stratton 10kW Standby Generator fits into the landscape with a size and shape that compares to a central air conditioner—half the size of competing brands. This 40685 10 kW standby generator system includes a 16-Circuit 100-Amp Automatic Transfer Switch—ideal for installations that power selected circuits instead of an entire house.

Rated for Installation 18-inches from the home with front-facing exhaust.

Briggs and Stratton PowerProtect Standby Generators carry the most comprehensive warranty in their class. Briggs & Stratton’s 6-Year Limited Warranty covers parts, labor, and travel for the entire term. Made in the USA with a commercial-grade Vanguard engine and included 16-Circuit Automatic Transfer Switch, the Briggs and Stratton 10kW Generator keeps all your essentials running throughout any power outage.

10 kW Briggs and Stratton Generator

The 10 kW Briggs and Stratton Generator comes equipped the 570 cc V-Twin OHV Vanguard commercial grade engine. PowerProtect series generators include Low Oil Shutdown, high temperature shutdown, LED display, and a built-in battery charger.

10kW Standby Generator 40685 Ratings

Use Rating Standby Only—Utility Connection Required
Voltage 120/240 Volts Single Phase
Running Watts 10kW LP Propane / 8kW Natural Gas
Running Amps 41.7 Amps LP Propane / 33.3 Amps Natural Gas
Main Circuit Breaker 50 Amps
Normal Operating Sound 67 dBA
Frequency Regulation ±2.5 Percent
Engine Speed 3600 RPM
Transfer Switch Amps 100 Amps
Transfer Switch Circuits 16 Circuits

 

Briggs & Stratton 10kW Standby Generator 16-Circuit Transfer Switch

A Briggs & Stratton 10kW Standby Generator restores power to your home during utility outages. Standby Generators are Automatic and start in any weather (including hurricanes), day or night. Whether you’re at home, away on vacation, or sleeping in your bed, the 10kW generator senses a power outage. Within seconds, the generator starts and signals the 100 Amp 16-Circuit Automatic Transfer Switch. The ATS switches from utility to generator power, and the house has electricity.

Where temperatures fall below 30 degrees Fahrenheit, install Briggs and Stratton Cold Weather Accessories. Cold weather accessories allow easier starts in temperatures below freezing. A warm battery can produce more power than a cold battery for starting. Warm oil lubricates better which prolongs engine life and makes it easier to start. Fuel Regulator warmers prevent icing that could prevent the regulator from adjusting the fuel pressure.

Installation requires the use of a Carbon Monoxide Detector inside the home to guard against CO Poisoning.

This Briggs & Stratton 10kW Standby Generator is NOT rated for Prime Power Applications.

* Battery Not included—12 Volt, Group BCI 26 or 51, 540 Cold Cranking Amps

* Enclosure Warranty

  • 1-Year Parts/Labor/Travel covers surface rust and corrosion.
  • 2-Year Parts/Labor/Travel covers enclosure rust through

Product Specifications

Model

Model Number; 40685

Manufacturer; Briggs and Stratton

Made In USA; Yes

Rated Watts; 10kW LP Propane / 8kW Natural Gas

Rated Amps; 41.7 Amps LP Propane / 33.3 Amps Natural Gas

Voltage; 120/240 Volts Single Phase

A/C Ton Rating; 3 Ton

Enclosure; Aluminum with Automotive Grade Galvanneal Steel Base

UL Listed; UL-2200

Decibel Rating; 67 dBA

Type; Standby Generator

Series Name; PowerProtect

Transfer Switch Model; TBD

Features

Starting System; Automatic Start

Low Oil Alert; Low Oil Shutdown

Mainline Breaker; 50 Amps

Battery Requirement; 12-Volt, Group 26 or 51, 540 CCA

Weight; 272 lbs

Dimensions; 28.0L x 24.5W x 34.8H

Warranty Information

Consumer Warranty; Briggs and Stratton 6-Year Warranty Covers Parts, Labor, and Travel

Engine

Engine Brand; Vanguard Commercial Grade OHV

Engine Size; 570 cc

Engine RPM; 3600

Cast Iron Sleeve; Yes

Cooling System; Air Cooled

Alternator

Alternator Type; Self Excited, Rotating Field

Frequency; 60 Hz

Auto Voltage Regulation; Yes

Fuel

Fuel Type; Natural Gas or LP Propane

Fuel Gauge; No

NG Power Capacity; 8kW

LP Power Capacity; 10kW

NG Consumption @ Full Load; 169 Cubic Feet per Hour

NG Consumption @ Half Load; 111 Cubic Feet per Hour

LP Consumption @ Full Load; 1.9 Gallons per Hour

LP Consumption @ Half Load; 1.2 Gallons per Hour

Transfer Switches

Transfer Switch Amps; 100 Amps

Transfer Switch Circuits; 16 Circuits

Ats Poles; 2 Pole

Transfer Switch Weight; 39 lbs

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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